<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<center>
  <h1>用户登录</h1>
  <form action="/loginUser" method="get" >
     <table border="1">
       <tr>
         <td>用户名</td>
         <td><input name="username" type="text"></td>
       </tr>
       <tr>
         <td>密码</td>
         <td><input name="password" type="text"></td>
       </tr>
       <tr>
         <td colspan="2" align="center">
           <input type="submit" value="登录">
         </td>
       </tr>
     </table>
  </form>
</center>
</body>
</html>